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zheka24 [161]
3 years ago
13

Dominic, Ralf and Peter have just eaten a HUGE Christmas meal. Dominic now weighs half as much as Ralf, and Peter weighs three t

imes as much as Dominic. Together they weigh 720 pounds. How much does Dominic weigh?
Mathematics
1 answer:
Strike441 [17]3 years ago
4 0
Dominic weighs 120.

I started laughing as soon as I saw this question...

It honestly made my day:)


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What’s the answer??? Pls help asap this is due tonight
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Answer:

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Step-by-step explanation:

5(3) - 3( - 5)

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Which expressions are equivalent to 2^5 2^4
KIM [24]

Answer with explanation:

The given expression is

=2^5 \times 2^4

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a × b= b × a

The Expression equivalent to ,the above expression are

1. 2^4 \times 2^5\\\\ 2. 2^5=32 \text{and} 2^4=16, \text{So} 2^5 \times 2^4=32 \times 16=512

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In 0.73, in which place is the 0
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Susan made the following 3-dimensional figure from a net. What 2-dimensional shapes are used to make the faces of the figure?
konstantin123 [22]

Answer:

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3 years ago
Find center,foci, and vertices of ellipse (x+3)^2/21+(y-5)^2/25=1
sasho [114]
I don't know if we can find the foci of this ellipse, but we can find the centre and the vertices. First of all, let us state the standard equation of an ellipse. 

(If there is a way to solve for the foci of this ellipse, please let me know! I am learning this stuff currently.) 

\frac{(x-x_{1})^2}{a^2}+ \frac{(y-y_{1})^2}{b^2}=1

Where (x_{1},y_{1}) is the centre of the ellipse. Just by looking at your equation right away, we can tell that the centre of the ellipse is: 

(-3,5)

Now to find the vertices, we must first remember that the vertices of an ellipse are on the major axis. 

The major axis in this case is that of the y-axis. In other words, 

b^2>a^2 

So we know that b=5 from your equation given. The vertices are 5 away from the centre, so we find that the vertices of your ellipse are: 

(-3,10)
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I really hope this helped you! (Partially because I spent a lot of time on this lol) 

Sincerely,

~Cam943, Junior Moderator
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